I don’t suppose there may be anybody on this planet that loves omni wheels fairly as a lot as James Bruton does. He makes use of them in every kind of initiatives and has a selected fascination with constructing automobiles that incorporate omni wheels. In case you have been to maintain issues conservative, you’d find yourself with one thing like an omni wheel-equipped forklift — a sensible software that folks truly reap the benefits of in warehouses world wide. However practicality isn’t Bruton’s concern, which is why he can construct an e-bike with one omni wheel going through the mistaken manner.
This isn’t even Bruton’s first omni wheel e-bike — it’s at the least the third that we’ve lined. However it’s the first to have this specific wheel association, with one omni wheel in entrance going through the conventional route and one other omni wheel in again going through sideways.
These additionally aren’t regular omni wheels, which normally have free-spinning rollers. That is one thing else that we haven’t seen made by anybody however Bruton. As an alternative of free-spinning rollers, its rollers are pushed via an revolutionary hub and belt system. Driving one belt turns the whole meeting, like a traditional wheel. However driving the opposite belt rotates the rollers perpendicular to that. So, the one “wheel” can produce motion in any route underneath energy.
In case you ignore the wheels, the e-bike resembles a small chopper and that’s the results of the aggressive rake angle of the entrance forks. As is typical for Bruton, the whole automobile is usually aluminum extrusion and 3D-printed plastic components. Although this additionally has aluminum plates to affix and strengthen the aluminum extrusion of the body.
The electronics additionally match what we’ve come to anticipate from Bruton. The motors are beefy ODrive M8325s models with ODrive S1 controllers, which embody encoders. They obtain instructions from a Teensy 4.0 improvement board that Bruton paired with a SparkFun BNO086 IMU (inertial measurement unit) to observe tilting. Bruton added an LED strip to the electronics enclosure and that acts like a spirit stage, offering a visible indicator of tilt. As an alternative of a conventional throttle, Bruton put two massive joysticks on the handlebars and people let him management energy to the entire motors.
This unusual e-bike appears to carry out fairly nicely. It’s steady and might stay upright whereas maneuvering round. And that maneuvering is as bizarre as you’d guess from the distinctive wheel association. However Bruton discovered that it was truly extra intuitive to drive in reverse, which made leaning for steering really feel extra prefer it ought to. Even that wasn’t precisely nice, however it labored and now Bruton has another weird automobile in his storage.